Western Labrador tea is a low evergreen shrub of wet, boggy ground across western North America, grown mainly for its fragrant leaves and white flowers. It thrives in consistently moist, acidic conditions and is best suited to cool or boggy gardens.
Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Part shade, Full sun
Water
Keep soil consistently moist and never let it dry out.
Soil
Acidic, moist, peaty or humus-rich soil.
Temperature
Hardy in cold climates; tolerates winter lows well below freezing.
How easy
Moderate
Safety
Toxic: Leaves and stems contain grayanotoxins; the tea is toxic if steeped too long, causing nausea, vomiting and other poisoning symptoms.. Toxic to cats and dogs (ASPCA).
Native range
W. Canada to NW. & CW. California
Climate
temperate
About
Rhododendron columbianum, commonly known as western Labrador tea, swamp tea, or muskeg tea, is a shrub that is widespread in the western United States and in western Canada, reported from British Columbia, Alberta, Washington, Oregon, Idaho, California, Montana, Wyoming, Utah, Nevada, and Colorado. It grows in wet places from sea level up to 3,500 m (11,000 ft). It was formerly known as Ledum columbianum. Its origins date back to the late Pliocene.
Uses
Rhododendron columbianum has been used medicinally as a tea astringent, diaphoretic, diuretic and laxative properties. The plant can, however, be toxic if the tea is allowed to steep too long. The fragrance of the leaves has also been shown useful in repelling insects and rodents.
Text excerpted from the Wikipedia article Rhododendron columbianum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.